Home / 2,851.56-4,275.72-1,698.12

Finding the Fourth Proportional to 2,851.56, 4,275.72 and 1,698.12

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Solution

The fourth proportional to 2,851.56, 4,275.72 and 1,698.12 is: 2,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.56 : 4,275.72 = 1,698.12 : x
  2. Step 2: Convert to fraction form
    2,851.56/4,275.72 = 1,698.12/x
  3. Step 3: Cross multiply
    2,851.56x = 4,275.72 × 1,698.12
  4. Step 4: Simplify right side
    2,851.56x = 7,260,685.65
  5. Step 5: Solve for x
    x = 7,260,685.65/2,851.56
  6. Step 6: Final answer
    x = 2,546.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.